Car door



Jan.,- 14, 19367 C. LUTE cAR'DooR Filed April i9, 1954 2 Sheets-Sheet 1ATTr C. LUTE CAR DOOR Jan. 14, 1936.

Filed April 19, 1934 2 Sheets-Sheet 2 TTY Patented Jan. 14, 1936assignments, to The Youngstown Steel Door Company, Cleveland, Ohio, acorporation of Ohio Application April 19, 1934, Serial No. 721,285

li Glaims.

This invention relates to car .doors and is di. rected primarily tomeansl for rendering such doors dustproof. .It is an object of thisinvention to provide means cooperable with car doors to effect a dustseal around the margins of the doors and which shall be inexpensive,simple in design and readily applicable by unskilled labor.

A further object is to provide iiexible tubular sealing means andinexpensive fastening elements economical of assembly with said sealingmeans and rapidly and easily applicable to the members to which thesealing means are to be secured.

A further. object is to provide tubular flexible sealing means andinexpensive fastening devices quickly and easily associated with thesealing means and having substantial bearing upon the sealing means.

Other objects will become clear as the description of the inventionproceeds.

In the drawings forming a part of this specification Figure 1 is abroken elevation illustrating the invention applied to one type of liftdoor;

Figure 2 is a horizontal section taken on line 2-2 of Figure 1;

Figure 3 is a vertical lsection taken on vline 3-3 ofFigure 1; vFigure'4 is a section similar to Figure 3, showing the invention appliedto another type of lift oor;

Figure 5 is a horizontal section similar to Figure 2; Figure 6 is avertical .section taken on lineo 6--6 of Figure 2;l

Figure? is a detail plan View of one of the fastening devices; and

Figure 8 is a detail elevation of the fastening lo device lshown inFigure 7, a tubularA sealing strip being shown in dot andv dash lines inorder to illustrate the 'mode of"assexnbly of the fastening device withthe sealing strip.

Applicants novel dust-proofing arrangement and weather seal is shownutilized with the type of liftdoor illustrated in Figures 1, Zand 3 ofthe drawings. 'I'he d'ooil illustrated vis designated by the numeral I0and comprises preferably a sheet metal panelII which may be pro--merging at their ends with vertical corrugations I3 and Il. Areinforcing marginal frame is secured to the metallic panel II andembodies anl upperreinforcing member I5, disposed with one vided withspaced horizontal corrugations I.2

leg I6 thereof extending inwardly horizontally 3 toward 'the railway carI'I upon which the door is mounted. The reinforcing frame, additionally,includes a front vertical substantiallyV channel v 4shaped reinforcingmember I8, a rear'vertiCal reinforcing member I9 and al lower horizontal5y reinforcing anglemember'ZIl.

As hereinbefore stated the door is preferably of the lifttype whereby,in its closed and lowered` position, saido door is adapted to havefrictional engagement with a supporting track 2| 10 secured by means ofa plurality of brackets 22 to the side sill reinforcing member 23 of'the car. Frictional engagement for the door is effected through themedium of the lower reinrfforcing. angle member 2li, as best shown inFig- 15 lure?, of the drawings.

door the frictional engagement is broken and the In order to move thedoor supported upon a plurality of rollers 2lV constituting a portion ofan elevating mechanism designated as a whole by the reference numeral 2oReferrmgto Figure 2 of the drawmgs it will be apparent that the forwardmovement of the door is terminated by the front vstopv member 26,`

/ which is secured to the front door post 21. At 25 the rear of the doora sealingl strip 28 is secured tothe inner face of the door andadaptedfto engage a spark strip 29 secured to the rear door postl 30.The construction at the top of the door is clearly illustrated inFigurel 3 of the drawings 3o and embodies a Z shaped side plate 3|, tothe depending leg 33 of Awhich a substantially Z shaped retainer 34 forthe top ofthe door is secured. The depending leg 33 additionally car'-ries an angle member 35 disposed with its hori- 35 zontal leg 36extending outwardly so as toV be overlapped by the inwardly extendingleg I3 and 'the angle member I5 secured to the upper margin of the door.For the purpose of providing a permanent and 40 eicient dust seal forthe -doo I0 it is preferred to utilize a nonmetallic tubular flexiblesealing strip. In the closed positionof the door the forward edgethereof is adapted to engage the sealing strip 31 secured to thefrontstop 26 in e145 manner hereinafter indicated.v Atv the rear verticalmargin of the door the strip 28 carried by the'door is adapted to engagea similar flexible 'tubular sealing strip 38 fastened to the spark strip29.- A similar flexible sealing 5o strip 39. is secured.. upon theoutwardly extending leg 36 of the angle member 35, whereby'the inwardlydirected leg I6 of the door Ireinforcing angle I5 is adapted tobear-upon and-provide anj eective 4weather and dust seal for the-upper55 portion of the door when said door'is in its closed and loweredposition. 'I'he lower portion of the door is rendered weather anddust-proof by means of a flexible sealing strip 40 secured between theopposed faces of a threshold plate 4I and the horizontal leg 42 of anangle member 43 rivetedto the .upstanding leg of a. side sill 44.

In order to rapidly and eflciently fasten the tubular sealing strips totheir supporting members applicants novel fastening device is utilized.

'The structure of this device is clearly illustrated in Figures 7 and 8of the drawings. From these figures it appears that said device,indicated as a whole byA the numeral 45, is substantially T shaped andcomprises the oppositely extending flanges 46 and 41 and a securingshank 48. The

flange 46, as shown in Figure 7 of the drawings,

may have a sharpened end so as to form a prong for a purpose disclosedlater. 'I'he flange 41 is offset as indicated at 49 relative to theflange 46 in the direction of the shank and is adapted to limit theextension of the fastener into the sealing strip and to provide a rmengagement between the fastener and the spark strip 29. Thefasteningdevice 45 may be formed of a wire which is semi-cylindrical in sectionbeing bent into the desired shape. However, said device may be formed asa stamping or in any other desired manner.

When the fastening devices are utilized to fasten the flexible tubularsealing strips to their supporting members, said sealing strips maypreviously be perforated in order to provide a series of slits extendingthrough the wall of the sealing strips. However, if the flange 46 of thefastening device vis in the formv of a prong said flange may be utilizedto pierce the wall of the sealing strips.

`Thefastening devices are assembled with a sealing strip by projectingthe flange 46 through the wall of said strip in order to dispose saidflange interiorly thereof. The fastening devices may then be turned inorder` to effect engagement between the offset flange 41 and theexterior. of the wall of the sealing strip. The shanks 48, each of whichisshown in Figure 8 of the drawings as asplit shank, are then insertedthrough openings provided therefor in the supporting member whereuponthe legs 50 and 5l of the 'l Shanks may be bent in opposite directions,

thereby securing the sealing strip to its supporting member. Thedisposition of the sealing strip, the flanges and shanks of a. pluralityof fastening devices 45 is clearly shown in Figure 6 of the drawings. Itwill be apparent from the showing of this figure that adjacent fasteningdevices are so arranged that the flanges 46 thereof extend in oppositedirections and that a. substantial bearing between said flanges and thesealing strip is obtained. If desired, the legs 56 and 5I of each of theshanks may be-soldered or welded to the supporting member. A furthercharacteristic of each of the fastening devices is illustrated in Figure6 of the drawings as well as in Figure 8. It will be observed from thesefigures that the angular relationship between the flange 46 and theshank 146 `of each of the fastening devices is less than a right angle.By this provision tight engagement between the sealing strip andl its 50and 5I may not be properly ybent into engagei ment with the supportingmember.

The invention, in its appncation to a mdined form of lift door 52, isillustrated in Figures 4 and of the drawings. The lift dOOr comprises asheet metal panel 53 reinforced along its margins by means of the Zshaped reinforcing members 54, 55, 56 and 51. In its closed and loweredposition the door is adapted to be frictionally supported upon a Zshaped track 58. For movement toward open position the door is adaptedto be elevated relative to the track by means of a lift mechanismindicated in its entirety by the numeral 59, whereupon the door issupported for antifrictional movement upon said track by means ofrollers 60. It will be apparent from Figures 4 and 5 of the drawingsthat the inner face of the door is substantially plane and that saidface of the door is adapted to cooperate with a preferably continuousflexible tubular sealing strip 6I secured to the car upon which the dooris mounted adjacent to the edges of said door. The flexible sealingstrip 6I is shown secured to the front and rear door posts 62 and 63, tothe depending leg 64 of an angle member 65 secured to the side plate 6,6of the car, and to the depending leg 61 of an angle member 68 fastenedto the fioor supporting member 69 which, in turn, is secured to the sidesill 10. The fastening devices 45 hereinabove described are utilized inthe manner set forth to secure said sealing strip to the car membersnoted. It will be apparent that as the door 52 assumes its closedposition it will be forced inwardly toward the car side by means ofindentures 1l provided in the track 58 so that said door will bearagainst the flexible sealing strip around its entire margin. While thearrangement for weather-proofing and dust-proofing purposes isillustrated and described in connection with lift doors, it will bereadily apparent that the arrangement is applicable, as well, to thedoors of the straight sliding type.

It is to be noted that with the arrangement disclosed the sealing stripspresent uninterrupted or uncut surfaces for engagement with doormembers.

It will be apparent A.that numerous changes and modications in thedetails of the invention will be clear to those skilled in the art. Itis intended, therefore, that all such modifications and changes becomprehended within this invention, which is to be limited only by thescope I of the claims appended hereto.

I claim:

1. Means for providing a seal between a side member and a door membermovable relative to said side member, said means comprising a flexibletubular sealing strip disposed upon one of said members and a pluralityof fastening elements for securing said sealing strip thereto, each ofsaid elements comprising oppositely extending flanges, one of saidflanges being positioned upon the inside of `said tubular sealing stripand the other of said flanges upon the' outside thereof, and means forsecuring said elements to said one member, the other of said f membersengaging said sealing strip for the puracentos' uponv the upper portionof said sealing strip in the closed and lowered position of said door.

3. Means for providing a seal between a door opening and a door forclosing said opening, comprising sealing strips extending substantiallyaround said opening and means for securing said strips to said car, saidmeans comprising oppositely extending flanges and a shank, said sealingstrip being disposed between said car and one of said flanges, the otherof said flanges being disposed between said sealing strip and said car,said shank being fastened to said car, said door in closed positionengaging said strips for the purpose set forth.

4. Means for providing a seal between a door and an opening controlledthereby, said means comprising a nonmetallic tubular sealing strip andfastening devices for said strip, said devices comprising a flangeinsertable substantially radially into said tube and adapted to bedisposed in engagement with the wall of said sealing strip adjacentthereto, a second. flange positioned exteriorly of said strip andadapted to engage the wall thereof and a securing shank.

5. Means for providing a seal between a doorl andan opening controlledthereby, said means comprising a nonmetallic tubular sealing strip andfastening devices for said strip, said devices comprising a flangeinsertable into said tubular strip through the wall thereof and adaptedto be disposed in engagement with the interior of said wall adjacent tothe point of insertion of said flange, a second flange adapted forexterior engagement with said wall and securing means.

v6. Means for providing a seal between a door and an opening controlledthereby, said means comprising a nonmetallic tubular sealing strip andfastening vdevices for said strip, said devices comprising a flangeinsertable into said tubular strip through the wall thereof and adaptedto be disposed in engagement with the interior of said wall adjacent tothe point of insertion of said flange, a second flange adapted forexterior engagement with said wall and securing means, the interiorlydisposed flanges of adiacent devices extending in opposite directions.

7.. Means for providing a seal between a door and an opening controlledthereby, said means Icomprising a nonmetallic tubular sealing strip andfastening devices for said strip, said devices comprising a flangeinsertable into said tubular strip through the wall thereof and adaptedto be disposed in engagement with the interior of said wall adjacent tothe point of insertion of said flange, a second flange adapted forexterior engagement with said wall and securing means, the interiorlyand exteriorly disposed flanges being offset relative to each other in adirection transverse to said sealing strip.

8. Means for providing a seal between'a door and an opening cnntrolledthereby, said means comprising a nonmetallic tubular sealing strip andfastening devices for said strip, said devices comprising a flangeinsertable into said tubular strip through the wall thereof and adaptedto be disposed in engagement with the interior of said wall adjacent tothe point of insertion of said flange, a second flange adapted forexterior engagement with said wall and a securing shank extending fromsaid flanges, said interiorly disposed flange forming an acute anglewith said shank.

9. Means for providing a seal between a door and an opening controlledthereby, said means comprising a nonmetallic tubular sealing strip andsubstantially T shaped fastening devices for said strip, said devicescomprising a head flange insertable into said tubular strip through thewall thereof for interior engagement with wall adjacent to the point ofinsertion of said flange, a second head .flange adapted for exteriorengagement with said wall and a securing stem.

10. Means for providing a seal between a door and an opening controlledthereby, said means comprising a nonmetallic tubular sealing strip `andfastening devices for said strip, said devices comprising a flangeinsertable into said tubular strip through the wall thereof for interiorengagement with said wall adjacent to the point of -insertion of saidflange and a securing shank.

i1. Means for providing a seal between a door and an opening controlledthereby, said means comprising a nonmetallic tubular sealing strip andfastening devices for said strip, said de' vices comprising a flangeinsertable into said tubular-strip through the wall thereof for interiorengagement with said wall adjacent to the point of insertion of saidflange and a securing shank, said shank extending from one end of saidflange.

' 12. In means for providing a seal between a closure and an openingcontrolled thereby, said means embodying a sealing strip, fasteningdevices for said strip, said devices comprising a flange adapted to beextended through a wall of said sealing strip and disposed in engagement`with the opposite face of said wall and a securing shank.

13. Means for securing a v'sealing strip between y a closure and anopening controlled thereby, said sealing strip having a tubular section,said l means embodying a flange insertable into said section through thewall thereof and adapted to be disposed in engagement with .the interiorof said wall adjacent to the point of vinsertion -of said flange and asecuring shank.

14. Means for securing a sealing .strip between a closure and an openingcontrolled thereby, said sealing strip having a tubular section, saidmeans embodying a flange insertable into said A section through the wallthereof .and adapted to be disposed in engagement with the interior ofsaid wall adjacent to the point of insertion of said flange, a secondflange positioned ex? teriorly of said section and adapted to engage thewall thereof and a securing shank.

. CARL LU'I'E.

